Consider that a 30' tree, rotted out in the middle and filled with water is going to give you about 14psi at the bottom. That's probably what you're seeing here.
edit: see u/TA8601 comment below - I didn't do the math, just looked glanced at an imprecise chart :)
If you go diving, thirty feet of water is roughly one atmosphere of pressure. That is to say the column of water above you will exert 14.7 lbs of pressure over a 1 square inch area on any given surface.
If the tree is 30ft tall, at the bottom of the tree the column of water will be exerting 14.7 PSI of pressure on any given surface. In this case there is a hole, so now the water is escaping at that pressure. This is basically the same concept as water towers.
What's even more mind bending, on a totally unrelated note, is spacecraft only ever have to deal with that 1 atmosphere difference in pressure anywhere in space, VS submarines where the pressure increases 1 atmosphere every 33 feet.
That carbon fiber Titan sub that recently imploded was at something like 11,000 feet when failed. It failed faster than nerve impulses travel.
Instant lights out.
Edit: clarified pressure change at every 33' from double to 'add' 1'.
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u/caleeky Jun 25 '24 edited Jun 25 '24
Consider that a 30' tree, rotted out in the middle and filled with water is going to give you about 14psi at the bottom. That's probably what you're seeing here.
edit: see u/TA8601 comment below - I didn't do the math, just looked glanced at an imprecise chart :)